mk4 golf gti 1.8t knocking sound

Hi im new to this site and just got my first gti mk4 1.8 t year 2000 took for test drive but never noticed a knocking sound when i go over bumps in the road can anyone give me advice on what it can be and is it safe to drive?

 

what i ment to say was never noticed the knocking untill a couple of dats after getting the car

 

DAYS

 

First thing is for daft and safety week is check wheels are tight
Next up I would look at inner anti roll bar bushes and drop links from anti roll bar to bottom arms,
Also check bottom are inner bushes (rear one goes) and lower ball joints for play

 

thanx mate will get someone to take a look as i have no idea about cars lol

 

it will be the drop links i changed my ones 6 days ago bought a pair of uprated solid metal ones off ebay for 20 worth every penny

 

I'd say that the drop links are your best bet. Dead easy fix and relatively cheap too.

 

could be rear subframe bushes

 

or ball joints

 

how about anti roll bar bushed?

 

there is no play in the weels

 

The common knocking noise on Mk4's is normally a worn "Dogbone" gearbox mount.

You'll get knocking, especially on pull away, and another sign is excessive engine movement.

Open the bonnet and get someone to rev it ( if its not cable throttle that is ), and see if the engine has a lot of movement.

 

no knocking on pull away only when going over bups in the road

 

bumps

 

drop links dont seem to have any play in them and rubbers look ok

 

rear subframe bushes as i said

 

What about inner anti roll bushes ?
and did you check ball joints ...both I have already said above.

 

ball joints fine

 

are the roll bar bushes easy to fit and how much we talking?

 

On my previous Mk4, I had knocking noises.

The causes were - Rear beam bushes, Dogbone bush, and wishbone bushes. When these were all replaced it was like driving a new car.

Rear beam bushes can be very noisy when they go.

Have you checked for movement on the engine when revving ?